/*
** External API function used to create a new virtual-table module.
*/
static int sqlite3_create_module(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
object pAux /* Context pointer for xCreate/xConnect */
)
{
return(createModule(db, zName, pModule, pAux, null));
}
/*
** External API function used to create a new virtual-table module.
*/
static int sqlite3_create_module_v2(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
sqlite3_vtab pAux, /* Context pointer for xCreate/xConnect */
smdxDestroy xDestroy /* Module destructor function */
)
{
return(createModule(db, zName, pModule, pAux, xDestroy));
}
/*
** The actual function that does the work of creating a new module.
** This function implements the sqlite3_create_module() and
** sqlite3_create_module_v2() interfaces.
*/
static int createModule(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
object pAux, /* Context pointer for xCreate/xConnect */
smdxDestroy xDestroy /* Module destructor function */
)
{
int rc, nName;
Module pMod;
sqlite3_mutex_enter(db.mutex);
nName = sqlite3Strlen30(zName);
pMod = new Module();// (Module)sqlite3DbMallocRaw( db, sizeof( Module ) + nName + 1 );
if (pMod != null)
{
Module pDel;
string zCopy; // = (char )(&pMod[1]);
zCopy = zName; //memcpy(zCopy, zName, nName+1);
pMod.zName = zCopy;
pMod.pModule = pModule;
pMod.pAux = pAux;
pMod.xDestroy = xDestroy;
pDel = (Module)sqlite3HashInsert(ref db.aModule, zCopy, nName, pMod);
if (pDel != null && pDel.xDestroy != null)
{
sqlite3ResetInternalSchema(db, -1);
pDel.xDestroy(ref pDel.pAux);
}
sqlite3DbFree(db, ref pDel);
//if( pDel==pMod ){
// db.mallocFailed = 1;
//}
}
else if (xDestroy != null)
{
xDestroy(ref pAux);
}
rc = sqlite3ApiExit(db, SQLITE_OK);
sqlite3_mutex_leave(db.mutex);
return(rc);
}
/*
** The actual function that does the work of creating a new module.
** This function implements the sqlite3_create_module() and
** sqlite3_create_module_v2() interfaces.
*/
static int createModule(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
object pAux, /* Context pointer for xCreate/xConnect */
smdxDestroy xDestroy /* Module destructor function */
)
{
int rc, nName;
Module pMod;
sqlite3_mutex_enter( db.mutex );
nName = sqlite3Strlen30( zName );
pMod = new Module();// (Module)sqlite3DbMallocRaw( db, sizeof( Module ) + nName + 1 );
if ( pMod != null )
{
Module pDel;
string zCopy;// = (char )(&pMod[1]);
zCopy = zName;//memcpy(zCopy, zName, nName+1);
pMod.zName = zCopy;
pMod.pModule = pModule;
pMod.pAux = pAux;
pMod.xDestroy = xDestroy;
pDel = (Module)sqlite3HashInsert( ref db.aModule, zCopy, nName, pMod );
if ( pDel != null && pDel.xDestroy != null )
{
sqlite3ResetInternalSchema( db, -1 );
pDel.xDestroy( ref pDel.pAux );
}
sqlite3DbFree( db, ref pDel );
//if( pDel==pMod ){
// db.mallocFailed = 1;
//}
}
else if ( xDestroy != null )
{
xDestroy( ref pAux );
}
rc = sqlite3ApiExit( db, SQLITE_OK );
sqlite3_mutex_leave( db.mutex );
return rc;
}
/*
** Invoke either the xSavepoint, xRollbackTo or xRelease method of all
** virtual tables that currently have an open transaction. Pass iSavepoint
** as the second argument to the virtual table method invoked.
**
** If op is SAVEPOINT_BEGIN, the xSavepoint method is invoked. If it is
** SAVEPOINT_ROLLBACK, the xRollbackTo method. Otherwise, if op is
** SAVEPOINT_RELEASE, then the xRelease method of each virtual table with
** an open transaction is invoked.
**
** If any virtual table method returns an error code other than SQLITE_OK,
** processing is abandoned and the error returned to the caller of this
** function immediately. If all calls to virtual table methods are successful,
** SQLITE_OK is returned.
*/
static int sqlite3VtabSavepoint(sqlite3 db, int op, int iSavepoint)
{
int rc = SQLITE_OK;
Debug.Assert(op == SAVEPOINT_RELEASE || op == SAVEPOINT_ROLLBACK || op == SAVEPOINT_BEGIN);
Debug.Assert(iSavepoint >= 0);
if (db.aVTrans != null)
{
int i;
for (i = 0; rc == SQLITE_OK && i < db.nVTrans; i++)
{
VTable pVTab = db.aVTrans[i];
sqlite3_module pMod = pVTab.pMod.pModule;
if (pMod.iVersion >= 2)
{
smdxFunctionArg xMethod = null; //int (*xMethod)(sqlite3_vtab *, int);
switch (op)
{
case SAVEPOINT_BEGIN:
xMethod = pMod.xSavepoint;
pVTab.iSavepoint = iSavepoint + 1;
break;
case SAVEPOINT_ROLLBACK:
xMethod = pMod.xRollbackTo;
break;
default:
xMethod = pMod.xRelease;
break;
}
if (xMethod != null && pVTab.iSavepoint > iSavepoint)
{
rc = xMethod(db.aVTrans[i].pVtab, iSavepoint);
}
}
}
}
return(rc);
}
/*
** External API function used to create a new virtual-table module.
*/
static int sqlite3_create_module(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
object pAux /* Context pointer for xCreate/xConnect */
)
{
return createModule( db, zName, pModule, pAux, null );
}
/*
** External API function used to create a new virtual-table module.
*/
static int sqlite3_create_module_v2(
sqlite3 db, /* Database in which module is registered */
string zName, /* Name assigned to this module */
sqlite3_module pModule, /* The definition of the module */
sqlite3_vtab pAux, /* Context pointer for xCreate/xConnect */
smdxDestroy xDestroy /* Module destructor function */
)
{
return createModule( db, zName, pModule, pAux, xDestroy );
}
internal static extern IntPtr sqlite3_create_disposable_module(IntPtr db, IntPtr name, ref sqlite3_module module, IntPtr pClientData, xDestroyModule xDestroy);
